two
ounces of Gosling’s Black Seal rum and a fizzy hit of ginger beer.

And,
by law, nothing but.

That’s
according to two trademark certificates on file with the United States Patent
and Trademark Office, which — in an exceptionally rare instance in the cocktail
world — dictate the precise ingredients and amounts required to call a Dark ‘n’
Stormy, well, a Dark ‘n’ Stormy.

“We
defend that trademark vigorously, which is a very time-consuming and expensive
thing,” said E. Malcolm Gosling Jr., whose family has owned Gosling’s since its
founding in Bermuda in 1806. “That’s a valuable asset that we need to protect.”

But this runs counter to the current bartending trend of
putting creative individual spins on traditional drinks. See this discussion at
Liquidity Preference.

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